Some atoms form ions
This presentation is the property of its rightful owner.
Sponsored Links
1 / 6

Some Atoms Form Ions PowerPoint PPT Presentation


  • 43 Views
  • Uploaded on
  • Presentation posted in: General

Some Atoms Form Ions. ionization = the process of adding or removing electrons from an atom or group of atoms Atoms that do not have filled valence shells may undergo ionization ion – a charged atom (a neutral atom has lost or gained one or more e-).

Download Presentation

Some Atoms Form Ions

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Some atoms form ions

Some Atoms Form Ions

  • ionization = the process of adding or removing electrons from an atom or group of atoms

  • Atoms that do not have filled valence shells may undergo ionization

  • ion – a charged atom

    (a neutral atom has lost or gained one or more e-)


Some atoms form ions

If the atom gains or loses electrons, it no longer is neutral (ie, the # p+ and # e- are not the same)

Cation - positively charged ion

(less electrons than protons)

Ex:

Lithium has 3 e- and is very reactive

Removing the e- makes lithium less reactive

It now has a full valence shell

Lithium ion written as Li+

It is not helium because we determine element by amount of protons (Helium has 2 e- like the Li + ion)

It is not lithium…..it is a lithium ion!


Some atoms form ions

Naming a Cation:

uses the name of the parent atom

Ex: Na+ is called Sodium ion

Mg2+ is called a magnesium ion

(charge of +2)

Al 3+ is called an aluminum ion

(charge of +3)


Some atoms form ions

Anion – negatively charged ion

(more electrons than protons)

Ex:

Fluorine has 9 e- and is reactive (7 e- in valence shell)

Adding the e- makes fluorine less reactive because it now has a full valence shell

fluorine ion written as F-

It is not neon (Ne has 8 e- like the F-ion)

It is not fluorine ….it is a fluorine ion!


Some atoms form ions

Naming a Anion:

use the root name of the atom and change the ending to have the suffix “ -ide”

Ex: F - is called Fluoride ion

I - is called an Iodide ion

O 2- is called an oxide ion

(charge of -2)


Some atoms form ions

Quiz on Monday! Here are the topics:

Info about energy levels, shells, orbitals

Orbitals vs. orbits

Electron info (symbol, charge, property)

Mass comparison of p, e, n

Niels Bohr and the Bohr model for 1st 18 elements

Valence electrons and valence shell

Relationship of period and columns with electrons

and valence electrons

Rule of octet

Shell names and maximum amount of electrons

Subshell names and maximum amount of electrons

How to name subshells of 1st 18 elements

Nuetral atom, Ion, cation and anion information


  • Login